Journal
ACTA GEOLOGICA SINICA-ENGLISH EDITION
Volume 96, Issue 4, Pages 1115-1135Publisher
WILEY
DOI: 10.1111/1755-6724.14996
Keywords
Middle-Late Jurassic; Shishugou Fauna; Shishugou Formation; terrestrial ecosystem; Shaximiao; Yanliao; Junggar Basin
Categories
Funding
- National Natural Science Foundation of China [42288201, 41688103, 40830210, 41120124002]
- National Science Foundation Division of Earth Sciences [NSF EAR 0310217, 0922187, 1636753]
- National Geographic Society
- Division Of Earth Sciences
- Directorate For Geosciences [1636753, 0922187] Funding Source: National Science Foundation
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The Middle-Late Jurassic transition period is crucial for understanding the evolution of terrestrial vertebrates. The Shishugou Fauna has yielded significant fossil remains that shed light on the origin and evolution of various vertebrate lineages. Radiometric dating places this fauna at approximately 159-164 million years old. Comparisons with similar faunas suggest that the Junggar deposits may preserve the most complete vertebrate fossil record from the Middle-Late Jurassic.
The Middle-Late Jurassic transition period is a critical period for the evolution of terrestrial vertebrates, but the global fossil record from this time is relatively poor. The Shishugou Fauna of this period has recently produced significant fossil remains of dinosaurs and other vertebrate groups, some representing the earliest known members of several dinosaurian groups and other vertebrate groups and some representing the best-known specimens of their group. These discoveries are significant for our understanding of the origin and evolution of several vertebrate lineages. Radiometric dating indicates that the fauna is aged approximately 159-164 Ma. Comparisons with other similarly-aged terrestrial faunas such as Shaximiao and Yanliao show both taxonomic similarities and differences between these faunas and indicate that the Junggar deposits might have preserved the most complete vertebrate fossil record for a Middle-Late Jurassic Laurasian terrestrial fauna.
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